Mutex in the oracle stored procedure... How to get there?

Hello

I have the series of insert/update statements in an oracle stored procedure. The stored procedure is called composite Oracle SOA.

The procedure works like this:

a. download a request and checks to see if the file is already in the database. If she's here, we update, elsewhere insert.

b. that I check for 10 tables and make the necessary inserts/updations.

But sometimes, when I get the huge volume of transactions in the stored procedure, I see this violation of unique constraint violated due to lack of appropriate controls to ensure that no other parallel forum is trying to update the same record.

How to do this so that no two execution of stored procedure doesn't work on the same record in the same table?

Thank you!!

Hello

you might consider something like this

create table t1(
  id number primary key,
  action varchar2(10),
  who varchar2(10)
)
;

declare
  p_id number           := 1;
  p_action varchar2(10) := 'Insert';
  p_who varchar2(9)     := 'Session 1';
  --
  procedure update_t1(p_id number, p_action varchar2, p_who varchar2) is
  begin
    update t1 set action = p_action, who = p_who where id = p_id;
  end;
begin
  -- try to insert or update row for PK p_id
  merge into t1 d using (
    select
      p_id     id,
      p_action action,
      p_who    who
    from dual
  ) s on (d.id = s.id)
  when matched then
    update set d.action = 'Update', d.who = s.who
  when not matched then
    insert values (s.id, s.action, s.who)
  ;
exception when dup_val_on_index then
  -- insert is no option, update when lock is released
  update_t1(p_id, 'Update', p_who);
end;
/

drop table t1 purge
;

Scenario (two sessions trying to insert/updated updated for id 1):

session 1 inserts ("1" "insert" "Session 1") and the data is not visible to the session 2

session 2 inserts same id but crashes because of the locking session 1

validation of the session 1

session 2 insert fails but who manages updating instead

session 2 commits, values for the id 1 is now ('1' 'Update' "Session 2")

Tags: Database

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Here is the signature of the stored procedure:

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Message to research in syntax of:

@org.hibernate.annotations.NamedNativeQuery

It seems that following is a possible cause (but I'm not sure about this one):

Query = "{call?" "{= SP_GET_NUMBER (: departmentId,: userId,: documentTypeId)} '.

You can change this:

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or

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You can take a look at:

https://Forum.Hibernate.org/viewtopic.php?p=2401604

HTH,

Bravo!
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anonymous block filled
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ORA-06512: at "User1." HELLO', line 1
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01031 00000 - "insufficient privileges".
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that the connection is active.
* Action: Ask the database to perform the operation or grant administrator
the required privileges.
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administrator to grant the privilege to the appropriate label.

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Dimitar

JPA with Oracle stored procedure: setting IN or OUT to missing index: 1
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I'm going to have bad configure integration between Oracle stored procedure (which returns a cursor) and the Parliamentary Assembly joint.

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} {Finally
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Error code: 6550
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link = > [null]
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Best regards
Chris

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create or replace
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Oracle.jdbc import. *;

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Process is complete.
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He said that there is no mainbook method, but there is, what I am doing wrong?
Thank you
Doug
Pass the String [] as an argument to mainbook():
```
create or replace PROCEDURE openpdffile
AS LANGUAGE JAVA
NAME 'pdfopenbook.mainbook(java.lang.String[])';
```
Do you have posted on the forum of the database?

Kind regards

Nick

call to a java class of an oracle stored procedure
my oracle stored procedure is:
create or replace
PROCEDURE openpdffile
IN THE JAVA LANGUAGE
NAME 'pdfopenbook.mainbook () ';

It is valid and so is the java class;
import java.sql. *;
Oracle.jdbc import. *;

public class pdfopenbook //class pdfopen
{
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{
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but I get the error:
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ORA-06512: at line 2
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He said that there is no mainbook method, but there is, what I am doing wrong?
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Doug
http://wiki.answers.com/Q/Can_you_call_a_java_function_from_an_oracle_stored_procedure

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